Examination of insulation wear modes in geothermal logging cables
The wear mode of the Tetrafluorethylene (TFE) insulation used on an electrical logging cable is described. The cable examined in this study was used repeatedly in various harsh geothermal environments. Considering the amount of abuse the cable was subjected to, the TFE performed very well. Grooves were formed on the outside of the insulation as a result of the fluid pressure and the loading from the inner layer of metal armor. Also, indentations on the inside of the insulation were caused by the insulation molding to the conductor strands. If this mode of wear were to continue, the conductors would eventually protrude from the insulation and short out against each other or the cable armor. 4 refs., 5 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5573356
- Report Number(s):
- LA-UR-85-926; CONF-850801-22; ON: DE85009554
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CABLES
CONDUCTOR DEVICES
DATA
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
EQUIPMENT
EXPERIMENTAL DATA
FLUORINATED ALIPHATIC HYDROCARBONS
GEOTHERMAL WELLS
Geothermal Legacy
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
SYNTHETIC MATERIALS
TEFLON
WEAR
WELL LOGGING EQUIPMENT
WELLS